Title :
A very fast and low-power time-discrete spread-spectrum signal generator
Author :
Cabrini, A. ; Carbonini, A. ; Galdi, I. ; Maloberti, F.
Author_Institution :
Dept. of Electron., Univ. of Pavia, Pavia
Abstract :
A non-linear circuit that obtains a logistic-like response with very low current levels suitable for generating of spread-spectrum signals is presented. This circuit obtains the non-linear transfer function by using only four cross-coupled transistors and may operate as a discrete-time spread-spectrum generator thus providing sequences of quasi-random numbers. The circuit was designed and simulated in 0.18-mum CMOS process and operates with nominal 1.2 V power supply. The power consumption of the non-linear block is about 80 muW with a data throughput of the output binary stream of 100 MB/s.
Keywords :
CMOS integrated circuits; coupled circuits; integrated circuit design; low-power electronics; signal generators; transfer functions; transistor circuits; CMOS process; circuit design; cross-coupled transistor; low-power time-discrete spread-spectrum signal generator; nonlinear circuit; nonlinear transfer function; quasirandom number; size 0.18 mum; voltage 1.2 V; Chaos; Circuit simulation; Cryptography; Data security; Energy consumption; Power supplies; Power system security; Signal generators; Spread spectrum communication; Transfer functions;
Conference_Titel :
Circuits and Systems, 2007. NEWCAS 2007. IEEE Northeast Workshop on
Conference_Location :
Montreal, Que
Print_ISBN :
978-1-4244-1163-4
Electronic_ISBN :
978-1-4244-1164-1
DOI :
10.1109/NEWCAS.2007.4488001
